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    PPPoE IPv4 Address Lost after IPv6 /128 address assigned by DHCP

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    • C
      cwager990
      last edited by

      I have pfsense configures to do PPPOE on the WAN Interface

      My ISP calls for the following settings:

      IPv4 Configuration Type: PPPoE
      IPv6 Configuration Type: DHCP
      Use IPv4 connectivity as parent interface: Request a IPv6 prefix/information through the IPv4 connectivity link

      The problem I am facing is that PPPoE establishes the WAN interface gets its IPv4 address, then the IPv6 address is negotiated and assigned to the WAN interface at this point the IPv4 address is lost from the WAN interface resulting in no IPv4 WAN connectivity.

      Any ideas ?.

      Thanks
      Chris

      Bob.DigB JKnottJ 2 Replies Last reply Reply Quote 0
      • Bob.DigB
        Bob.Dig LAYER 8 @cwager990
        last edited by

        @cwager990 What ISP, Country, technology?

        C 1 Reply Last reply Reply Quote 0
        • C
          cwager990 @Bob.Dig
          last edited by

          @Bob-Dig Andrews and Arnold; I've configured it as per the guide on there own support site.

          Technology is VDSL2 / FTTC, so external VDSL2 modem connected to the WAN port of pfSense for PPPoE.

          Untied Kingdom.

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          • JKnottJ
            JKnott @cwager990
            last edited by

            @cwager990 said in PPPoE IPv4 Address Lost after IPv6 /128 address assigned by DHCP:

            Any ideas ?

            Try selecting Request only an IPv6 prefix. That should prevent assigning the /128 address. You don't really need it, as it just provides an address to the interface. If you need an address for a VPN, etc. you can use your LAN IPv6 address.

            PfSense running on Qotom mini PC
            i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
            UniFi AC-Lite access point

            I haven't lost my mind. It's around here...somewhere...

            C 1 Reply Last reply Reply Quote 0
            • C
              cwager990 @JKnott
              last edited by

              @JKnott Hi, I have tried this as suggested and the behaviour is the same.

              It is worth nothing that I have now discovered if I force disconnect the pppoe session several times it eventually sets up correctly with both an IPv6 and an IPv4 address.

              This is a problem because a reboot and its back to just IPv6 making a remote reboot all but impossible.

              Still hoping to find a solution to this.

              Thanks
              Chris

              Bob.DigB 1 Reply Last reply Reply Quote 0
              • Bob.DigB
                Bob.Dig LAYER 8 @cwager990
                last edited by

                @cwager990 What happens if you disable IPv6, is IPv4 working with no problem?

                C 1 Reply Last reply Reply Quote 0
                • C
                  cwager990 @Bob.Dig
                  last edited by

                  @Bob-Dig Yeah if I disable IPv6 it established fine on IPv4 no issues no drop-outs nothing.

                  Bob.DigB 1 Reply Last reply Reply Quote 0
                  • Bob.DigB
                    Bob.Dig LAYER 8 @cwager990
                    last edited by

                    @cwager990 Have you tried "Do not wait for a RA"? This is common around here for DSL.

                    C 2 Replies Last reply Reply Quote 0
                    • C
                      cwager990 @Bob.Dig
                      last edited by

                      @Bob-Dig Hi, so that seems to have fixed my issue although quite what RA has to do with an IPv4 address being dropped beats me. Thanks

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                      • C
                        cwager990 @Bob.Dig
                        last edited by

                        @Bob-Dig looks like I spoke to soon still have the same issue it's intermittent sometimes it gets both address on reboot or session reconnect sometimes it doesn't.

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                        • C
                          cwager990
                          last edited by

                          I am still having this issue, does anyone have any other ideas ? I really don't want to be forced back to my slow ASA 5512's ha!

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